Grantham, Mayo, Van Otterloo & Co (GMO)’s Kosmos Energy KOS Stock Holding History

Grantham, Mayo, Van Otterloo & Co (GMO)’s Portfolio KOS Stock Details KOS Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$50.9M	Sell	18,307,718 -16,496,599	-47%	-$31M	0.13%	70
2025 Q4	$31.6M	Buy	34,804,317 +23,350	+0.1%	+$30.8K	0.08%	108
2025 Q3	$57.7M	Sell	34,780,967 -2,039,300	-6%	-$3.81M	0.16%	62
2025 Q2	$63.3M	Sell	36,820,267 -3,067,561	-8%	-$5.55M	0.19%	50
2025 Q1	$90.9M	Buy	39,887,828 +7,260,261	+22%	+$21.4M	0.29%	39
2024 Q4	$112M	Buy	32,627,567 +5,906,210	+22%	+$22.5M	0.36%	37
2024 Q3	$108M	Buy	26,721,357 +1,488,031	+6%	+$7.25M	0.34%	38
2024 Q2	$140M	Buy	25,233,326 +1,827,807	+8%	+$10.7M	0.47%	35
2024 Q1	$139M	Buy	23,405,519 +271,339	+1%	+$1.63M	0.51%	34
2023 Q4	$155M	Buy	23,134,180 +796,126	+4%	+$5.57M	0.69%	33
2023 Q3	$183M	Buy	22,338,054 +2,690,342	+14%	+$19.1M	0.86%	32
2023 Q2	$118M	Buy	19,647,712 +897,385	+5%	+$5.84M	0.54%	36
2023 Q1	$140M	Sell	18,750,327 -2,662,014	-12%	-$19.5M	0.71%	35
2022 Q4	$136M	Sell	21,412,341 -322,000	-1%	-$2.01M	0.73%	36
2022 Q3	$112M	Buy	21,734,341 +2,511,900	+13%	+$15.2M	0.65%	39
2022 Q2	$119M	Sell	19,222,441 -3,973,127	-17%	-$28.7M	0.64%	37
2022 Q1	$167M	Sell	23,195,568 -4,931,096	-18%	-$25.1M	0.8%	34
2021 Q4	$97.3M	Sell	28,126,664 -553,664	-2%	-$1.99M	0.47%	41
2021 Q3	$84.9M	Buy	28,680,328 +7,673,182	+37%	+$18.7M	0.42%	48
2021 Q2	$72.7M	Buy	21,007,146 +1,736,846	+9%	+$5.38M	0.36%	58
2021 Q1	$59.2M	Sell	19,270,300 -1,061,178	-5%	-$3.1M	0.32%	57
2020 Q4	$47.8M	Buy	20,331,478 +7,815,912	+62%	+$12.4M	0.29%	57
2020 Q3	$12.2M	Buy	12,515,566 +11,047,432	+752%	+$16.2M	0.09%	136
2020 Q2	$2.44M	Buy	+1,468,134	New	+$2.36M	0.02%	377
2018 Q1	–	Sell	-110,300	Closed	-$756K	–	603
2017 Q4	$756K	Buy	110,300 +92,200	+509%	+$702K	﹤0.01%	382
2017 Q3	$144K	Buy	+18,100	New	+$125K	﹤0.01%	543

Other funds holding KOS

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

EPIM

Equinox Partners Investment Management Stamford, Connecticut $245M AUM 225.58% 1-Year Est. Return

D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return

Hotchkis & Wiley Capital Management Los Angeles, California $32.4B AUM 17.21% 1-Year Est. Return

Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return

Charles Schwab San Francisco, California $654B AUM 26.35% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

Jane Street New York $777B AUM 61.18% 1-Year Est. Return

Grantham, Mayo, Van Otterloo & Co (GMO)'s KOS Position: Q1 2026 in Review

Grantham, Mayo, Van Otterloo & Co (GMO) reduced its Kosmos Energy (KOS) stake by 47% in Q1 2026, selling an estimated $31M and leaving 18,307,718 shares worth $50.9M. The position accounts for 0.13% of the portfolio, ranked #70.

Grantham, Mayo, Van Otterloo & Co (GMO) first reported a position in KOS in Q3 2017 and has held it in 26 quarters since. The position peaked at $183M in Q3 2023. 262 funds tracked by Wall St. Rank hold KOS as of Q1 2026.

Grantham, Mayo, Van Otterloo & Co (GMO) held 18,307,718 shares of Kosmos Energy worth $50.9M as of Q1 2026.
Grantham, Mayo, Van Otterloo & Co (GMO) sold 16,496,599 Kosmos Energy shares in Q1 2026, an estimated $31M.
Kosmos Energy made up 0.13% of Grantham, Mayo, Van Otterloo & Co (GMO)'s portfolio in Q1 2026, its #70 holding.
Grantham, Mayo, Van Otterloo & Co (GMO) first reported a position in Kosmos Energy in Q3 2017 and has held it in 26 quarters since.
Grantham, Mayo, Van Otterloo & Co (GMO)'s Kosmos Energy position peaked at $183M in Q3 2023.
262 funds tracked by Wall St. Rank held Kosmos Energy as of Q1 2026.

Based on Grantham, Mayo, Van Otterloo & Co (GMO)'s 13F filing for Q1 2026, filed 14 May 2026.